When Mac's old war buddy "Carrot" comes to Seacouver seeking weapons for a revolutionary force in an unnamed Balkans country, Duncan must uncover the sinister vegetable's simplistic conspiracy to escalate the conflict before more innocent bystanders are injured. The Rewatchers try to figure out how arms embargoes work, marvel at the world's zaniest coroner, and bid a fond but unceremonious farewell to Mac's hetero-life-mate Charlie.